Hi, I'm new here and a nervous new pool owner! We just purchased for the first time a Summer Waves Elite 16x48 above ground pool for our kids to beat this LOVELY Texas heat. We had our ground leveled by someone who does deck leveling and landscaping and it is pretty much perfect on the leveling aspect. So we got it up and filled it up and my 10 year old and her friend are in it and as they swim the wall(liner) moves...... and its giving me extreme anxiety watching the pool move as they do. Now not to be dramatic its not HORRIBLY moving but there is movement. I am so afraid if they get too rowdy in there it could collapse? My question is are these above ground vinyl pools supposed to do that? I have had some friends who also are first timers say that it is normal... But i am still leery. My husband says it has to move bc of the frame and that its designed to do this. I have attached pictures of the pool and the brand. Any information would be GREATLY appreciated as this would ease my nerves.